1.21 Nether Portal Overlay

[icy vapor]

Friend of mine asked if it was possible to change the overlay texture that displays when teleporting into or out of the Nether in 1.21 (too saturated, kinda flash bangs them whenever they teleport)
I couldn't find any texture that matched this in base files besides the nether_portal.png so I remapped the portal block to a new texture and changed nether_portal.png to be less obtrusive.
However, changing nether_portal.png does not affect this overlay. Does anyone know where this texture is stored, or if it can be overwritten with a resource pack?

[spiral flume]

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[ashen hollow]

so I tried some stuff out just now and it seems that the overlay uses the particle texture from the "nether_portal_ns" model

hm so I tried changing the blockstates file to use a different model

but it just uses the particle of the block model that's used there

[icy vapor]

the particle textures those models use is still just the nether_portal.png texture, which upon changing to something like a solid white texture, does not change the overlay

[ashen hollow]

no I tried changing the particle textures to something different than what the models uses
and it used the particle texture

I was able to get the overlay to be a crafter face

just by changing the particle texture

[icy vapor]

ohh. that's odd, but ok will try that 👍

yay I got it working, thanks so much for the help! Kinda inconvenient that it references the particle texture but oh well